#!/usr/bin/perl

use strict;
use warnings;
use List::Compare;
use Config::Simple;
use Config::IniFiles;
use Fcntl qw(:flock);
use Benchmark qw(:all) ;
use Data::Dumper qw(Dumper);

$|=1; #flush every time the program

=flock
    sub LOCK_SH { 1 } ## shared lock
    sub LOCK_EX { 2 } ## exclusive lock
    sub LOCK_NB { 4 } ## non-blocking
    sub LOCK_UN { 8 } ## unlock
=cut

my %information;
my $path = 'conf.ini';

my $count = -5 || die "Need a count!\n";

sub complex {
    
    open my $fh , '<' , "".$path."" 
	or die "Could not open file: ".$path." - $!\n";

    flock($fh, LOCK_SH)
	or die "Could not lock '".$fh."' - $!\n";

    tie my %ini, 'Config::IniFiles', ( -file => "".$path."" )
	or die "Error: IniFiles->new: @Config::IniFiles::errors";

    close ($fh)
	or die "Could not close '".$path."' - $!\n";

    print Dumper(\%ini);

    return %ini;

} # end sub complex

sub val {

    open my $fr , '<' , "".$path."" 
	or die "Could not open file: ".$path." - $!\n";

    flock($fr, LOCK_SH)
	or die "Could not lock '".$fr."' - $!\n";

    my $cfg = Config::IniFiles->new( -file => "".$path."" )
	or die "error: IniFiles->new: @Config::IniFiles::errors";

    close ($fr)
	or die "Could not close '".$path."' - $!\n";

    my $values = $cfg->val( 'Perl', 'test' );

    my @array = split(',', $values);
    
    print Dumper(\@array);

    return @array;

} # End of sub val

sub simple {

    open my $fr , '<' , "".$path."" 
	or die "Could not open file: ".$path." - $!\n";

    flock($fr, LOCK_SH)
	or die "Could not lock '".$fr."' - $!\n";

    Config::Simple->import_from( "".$path."", \%information)
	or die Config::Simple->error();

    close ($fr)
	or die "Could not close '".$path."' - $!\n";
    
    print Dumper(\%information);

    return %information;

} # End of sub simple

my $r = timethese ( $count , 
		    { 'complex' => '&complex',
		      'val'     => '&val',
		      'simple'  => '&simple' } );
cmpthese $r;

##</code><code>##

[Perl]
test= bar,baz,foo,quux

##</code><code>##

val:  6 wallclock secs ( 5.69 usr +  0.30 sys =  5.99 CPU) @ 989.98/s (n=5930)
          Rate complex     val  simple
complex  700/s      --    -29%    -46%
val      990/s     41%      --    -24%
simple  1297/s     85%     31%      --